Current sense amplifiers

Maximize your system with current sensing solutions for protection, feedback control & system monitoring

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Whether you need to detect an overcurrent fault for system diagnostics, improve system power efficiency, or provide closed-loop feedback, our portfolio of current sense amplifiers delivers industry-leading current sensing accuracy across a broad range of common mode voltages and temperatures for any current sensing application without sacrificing cost and size.

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Featured current sensing amplifiers

INA296B NEW

-5-V to 110-V, bidirectional, 1.1-MHz 5-V/µs high-precision current sense amplifier

Approx. price (USD) 1ku | 0.95
INA296A NEW

-5-V to 110-V, bidirectional, 1.1-MHz 5-V/µs ultraprecise current sense amplifier

Approx. price (USD) 1ku | 1.35
INA241A NEW

-5-V to 110-V bidirectional ultraprecise current sense amplifier with enhanced PWM rejection

Approx. price (USD) 1ku | 1.35
INA241B NEW

-5-V to 110-V bidirectional high-precision current sense amplifier with enhanced PWM rejection

Approx. price (USD) 1ku | 0.95
INA190-EP NEW

Enhanced product, 40-V, bidirectional, ultraprecise current sense amplifier with picoamp IB & EN

Approx. price (USD) 1ku | 3.25

Benefits of our current sensing amplifiers 

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Low-drift architecture

Achieve low drift over a wide temperature range with our zero-drift architecture and precision matched, integrated gain resistors. 

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High accuracy

Increase overall system performance and efficiency with higher accuracy due to low input offset and low gain error, enabling lower ohmic shunts and minimizing power dissipation.

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Wide common-mode input range

Measure common-mode voltages beyond your amplifier’s supply voltage rail (from 120 V to -22 V) to address high-voltage system needs, like batteries in electric vehicles and motor-control systems.

Technical resources

Video
Video
TI Precision Labs - Current sense amplifiers
Check out this comprehensive curriculum for current sense amplifiers. The series is comprised of short training videos that cover the basics of current sense amplifiers, tips for applications, debugging, key specs and more.
Application note
Application note
Introduction to Current Sense Amplifiers
Learn the basics of current sense amplifiers, including the different technologies, key parameters, and some introductory design considerations.
document-pdfAcrobat PDF
E-book
E-book
Simplifying Current Sensing (Rev. A)
Explore a comprehensive library of application-specific current sensing design challenges and how to solve them.
document-pdfAcrobat PDF

Design & development resources

Calculation tool
Current sense amplifier comparison and error tool
This Excel calculator provides a comparison between two and five of our standard current sense amplifiers, delivering a chart containing the basic parameters of each device. This calculator also takes system condition inputs from users such as common-mode voltage, supply voltage, shunt resistor (...)
IDE, configuration, compiler or debugger
System configuration tool

To help simplify configuration challenges and accelerate software development, we created SysConfig, an intuitive and comprehensive collection of graphical utilities for configuring pins, peripherals, radios, subsystems, and other components.  SysConfig helps you manage, expose and resolve (...)

Simulation tool
PSpice® for TI design and simulation tool
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)